How To Become a Network Nazi
Ever since my blog picked up traffic, I found an increasing number of spammers on it. In mostly manual labor they post comments to existing entries, either just to vandalize or to promote external websites.
Some try to be clevery cloaked, mostly with phrases like this:
Very good blog entry! Thx!
and then having the promoted link under the signature. Difficult to spot. Really.
But for me it means that I have to scan my blog on a regular basis. Well, I have to do that anyway, just to respond to your comments, my little possums.
To delete 5 or more chinese verbal excrements for herbal ingredients does not count to my favourite spare time activities. This is why I have started to block IP addresses, sometimes even small /24 networks (in CIDR speak).
This was very effective with russian, specifically ukraine spamming networks. They were using whole server farms. Easy to spot, easy block.
It also hurt the individual chinese spammer. But there seem to be a lot of them, so I started quickly to block /16 addresses, moving then to even larger blocks.
Now I am not looking for the smallest IP block, I am looking for the biggest. And I do not shy away to block /8 networks. That's on a continent level, yes. And there are only 127 of these on this planet. Draconian, I know.
Today I doubt that someone east to the Ural can access this blog. My personal Chinese Wall. India I spared (as few spam originates from there), and so I spared Australia (but that for other reasons).
So if you read this, little spammer, namely that you cannot read this, it is exactly because of you.
Ah ja: Nothing personal.